TIME-DOMAIN ELECTRON-SPIN-RESONANCE STUDIES ON HYDROGEN-ATOM TRANSFERTO PHOTOEXCITED QUINONES

Authors
DAS R RADHA PK VENKATARAMAN B
Citation
R. Das et al., TIME-DOMAIN ELECTRON-SPIN-RESONANCE STUDIES ON HYDROGEN-ATOM TRANSFERTO PHOTOEXCITED QUINONES, Proceedings of the Indian Academy of Sciences. Chemical sciences, 105(4-5), 1993, pp. 273-277
Citations number
17
Categorie Soggetti
Chemistry
Journal title
Proceedings of the Indian Academy of Sciences. Chemical sciences → ACNP
ISSN journal
02534134
Volume
105
Issue
4-5
Year of publication
1993
Pages
273 - 277
Database
ISI
SICI code
0253-4134(1993)105:4-5<273:TESOHT>2.0.ZU;2-3
Abstract
Time-domain electron-spin-resonance studies on p-benzoquinone using et hanol and isopropanol as solvents show emissively polarized ESR spectr a of semiquinone and hydroxyalkyl radicals within 0.5 mus after the la ser pulse at 248 nm. The hydrogen abstraction from the alcohols by the triplet excited quinone is concluded to be the primary photochemical step.